LEC - Light-Emitting Ceramic

StashToker

Well-Known Member
great spectrum but i am opposed to point source lighting in general as distributed arrays are better in almost every way
The 100 watters are about to come out in full spectrum. These are something I am seriously looking into. 8 replacing 2 1000 watt hps. If he sells them for 200 a piece like he did the mothers keepers I think I'll jump on that. My only worry is will 100 watts penetrate? Or would I be better off doing higher output fewer fixtures? You seem to know quite a bit and I'm about to upgrade. bongsmilie
Trying to make a sound decision, not jump in feet first.
 

BOBBY_G

Well-Known Member
Or would I be better off doing higher output fewer fixtures? You seem to know quite a bit and I'm about to upgrade. bongsmilie
.
i will always take more fixtures at lower watts any day of the week. which is precisely why 40-75W cobs are so popular here - and they are 50-70% more efficient than those 100 lm/W 100W spectrum king fixtures

id buy a 4-cob 200W cutter kit for $450 (33000 lumens) before a 100W $200 spectrum king (10000 lumens)

apart from the big difference in output/efficiency, youll get better coverage and less hot spots/less dark spots
 
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StashToker

Well-Known Member
Well it looks like I'm stuck with HPS until this shit gets a little more affordable, I'm not going to spend $4000-5000 to save $10 a month and a little noise. That shit doesn't add up. Damnit. Well thanks for being brutally honest.
 

ttystikk

Well-Known Member
Well it looks like I'm stuck with HPS until this shit gets a little more affordable, I'm not going to spend $4000-5000 to save $10 a month and a little noise. That shit doesn't add up. Damnit. Well thanks for being brutally honest.
Thefunniest thing to us COB LED converts is when someone uses the electric bill to justify/indict the decision to switch. Why, you might ask?

COB LED runs cooler, saving both on power bills and helping to improve the quality of the product. Running cooler also saves on HVAC investment, maintenance and especially operating costs.

Better spectrum helps vigor, health, growth, terpenes and makes them look darn nice in the grow. Seriously.

No bulb replacement. Again, look past the basic costs of the biannual ritual of bulb replacement to realize that lumen/PAR depreciation doesn't just happen at the end of this interval, BOTH spectrum AND PAR/Watt efficiency suffer the effects of aging cumulatively, starting the very first time the lamp is struck. In other words, the only time the lamp actually delivers its rated output is during your very first day cycle. It's alllllllllll downhill from there. How much do you think a cumulative 15% less light costs YOU in terms of yield?

Then, there's the maintenance labor aspect itself; replacing bulbs is a bitch. And even dangerous, depending on where those lamps are and whether any get dropped.

Dropped HID?! INSTANT HAZMAT SITE! EVERY HID has mercury in it, so if you smash one, you've just coated the whole area in mercury dust- or vapor if it was running. Mercury very bad, just saying.

Power problems? COB LED don't care. But HID lamps must have a cooling off period, almost none of them will hot restrike.

So yeah, you'll save some on your power bill- but those savings will be dwarfed by the combination of even larger savings outlined above and in increased yields and quality.

I predict that in 5 years, only die hard Luddites will be clinging to their light bulbs, and they'll be finding lampreplacements to be a daunting challenge. This trend will be accelerated by the public perception of the indoor growindustry's wasteful habits, power company's desires to reduce demand and general environmentalism.
 

ttystikk

Well-Known Member
That gets very steep in price when trying to cover the same area. 6x12
I used 12 modules constructed with precisely the combo of parts @BOBBY_G suggested. Each module covers a 2x3'=6 sq ft area with 824 PPfD. Your 6 x 12 source would utilize exactly a dozen.

If you're running just two thouies over that space you're effectively trying to make their light cover twice the area they should; 6x6=36 sq ft instead of the 4x4= 16 sq ft they're made for. You really need four thousand watt setups for that square footage... and even that wouldn't provide competitive lighting relative to the COB LED lighting we're talking about.

I know we're throwing a lot at you, but having good information is essential to making good decisions.

IF you can swing the up front investment in COB LED, I'm pretty sure you'll be as happy as I am. I covered a 6x12 space with modules, that's the very same size and shape as you plan to. The price? The equivalent of a couple pounds... which you'll grow the first time you run them.
 

BOBBY_G

Well-Known Member
how bout this.... dont ditch your thouies but move em over so you have 3 4x6 spaces

cob out one of the 4x6s and run it side by side the hps spots
 

SSGrower

Well-Known Member
Hahaha...cob last forever,until the next bin comes out...every quarter or so.....

I'll stick with lec,change bulb every 2 yrs or so....
I get the logic here but it still stands that you cannot grow by starlight (i.e. there are many more stars in the universe that are more intense than our own, but they do not have enough intensity to impart vegetative growth). So by my logic the simplest thing to do is move the source closer, hell the limit would probably be light source spacing in very close proportion to cell spacing in the plant for distribution and distance. --- MY LOGIC --- (which if you are unaware does not always jive so well with every situation bongsmilie).

@BOBBY_G Are aliens green because they come from a planet with a blurple sun? Got a serious question about some specific blurple arrays - how do I find out the specs on them Shxxzhen is not too forth coming with info?

If we don't have hipsters to maintain our phonographs how will we know what message we sent to the aliens on Voyager? Answer - We'll have to DIY one.
 
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SSGrower

Well-Known Member
I hear there's a cottage I ndustry out there making vacuum tubes. No idea if it's true.
There's just something about standing next to an old school vacuum amp that before the music starts and your body is vibrating form the radiation, mmmmmmmm radiation. one over r squared bbzbbzbbzzzzzzbbzbzbzbzbzbzbzbzbzbz.... Daaaanaanaanana Nannnan NAnnnan.... (music).
 

ttystikk

Well-Known Member
I get the logic here but it still stands that you cannot grow by starlight (i.e. there are many more stars in the universe that are more intense than our own, but they do not have enough intensity to impart vegetative growth). So by my logic the simplest thing to do is move the source closer, hell the limit would probably be light source spacing in very close proportion to cell spacing in the plant for distribution and distance. --- MY LOGIC --- (which if you are unaware does not always jive so well with every situation bongsmilie).

@BOBBY_G Are aliens green because they come from a planet with a blurple sun? Got a serious question about some specific blurple arrays - how do I find out the specs on them Shxxzhen is not too forth coming with info?

If we don't have hipsters to maintain our phonographs how will we know what message we sent to the aliens on Voyager? Answer - We'll have to DIY one.
Starlight works fine, once concentrated enough.

Closer is only better to get intensity, then distribution becomes the limiting factor.

Aliens we've seen are green cuz they eat weed all day long. You don't think the cops find ALL those outdoor grows, do you?

If China doesn't want to tell you basic specs about their unit, DON'T BUY IT.

Voyager's record player is working fine, and flying 10 billion miles to fix it will take longer than a tank of gas and some munchies. So it's it's on its own, man.

No, the moon is not made of green cheese. With proper amendments, it CAN be used to grow weed, this from NASA.

You got questions, we got answers!
 
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